Superheater.



No. 831,999. PATENTED SEPT. 25, 1906.

C. H. SMITH.

SUPERHEATER.

APPLICATION MLBD JAN.29,1906.

2 SHEETS-SHEET 2.

thereof.

unirnn srnrns orrros.

CLARENCE HlLlr Slvll'lli. OF

POWER QEVELOPMENT RATIGN QF MAINT.

SUPERHETEH.

Specification or" Letters Fatent.

resent-es sept. se, ieee.

Application led January 29, 190B. Serial No. 298,398,

To @ZZ whom it may concern:

' Be it known that l, CLARENCE HILL SMITH, of Falmouth', in the county of Bernstable and State of Massachusetts, hoveinvented certain new end useful Improvements in Superheoters, of which the following is e. full, clear, and exact description, reference being had to the sccornpenying drawings, forming part of this specification.

This invention hes reference to improve# ments in superheeters for Wetter or steam, -and particularly to such superheeters designed for use n1 water-tube boilers.

One object of the invention is to so construct e superheeter of this nature that access may be had to the snperheeter for repairing the saine or for the removal or insertion of tubes.

'Another object of the invention is to irnprove the construction of the superheotcr and the ineens whereby the seme is included in the circulation system of the boiler.

AOther objects of the invention will appear from the following description.

The invention consists in the peculiar construction oi' the superhester."

Theinventio'n also consists in the peculiar manner in which'the superheater is connected with the boiler.

The invention still furthe-r consists in such other novel tentures of construction and conibinetion of parts es shcllhereinafter be incre fully described, and pointed out in the claims.`

Figure l represents a vertical sectional view of a Water-tube boiler, illustrating the construction of the superheoter and its connection with vthe Water-circuleting system Fig. 2 represents a. plain view of the superheeter, illustrating its relation to the side wall of the boiler. I

Similar numbers of reference designete correspondin parts throughout.

The super eater is herein illustrated in combination with e Water-tube steom-boiler set in the usuel manner, which setting has the front Wall 5, the side Well 6, and the bridgeovall 7, between which bridgewall and the front is located the furnace or `lire-box S. From the upper part of the bridge-well e tends the baffle-plete 9, havingr the fon Werdlv-inclined deflect-or niexnberlO, :idented to direct the products or' combustion tor- Werd. The rear Well l1 hes the routlet'iZ, preferably provided with the usual demper i3, the boiler being covered in .by the topy 14 oi' any Well-known heet-resisting materiel. t the rear portion of the setting is located the inclined bathe l5, from the lower end of l which extends the -f lelector 16.

The crcss-druinsl? end .i8 ut the upper n ort of the boiler-casing ere connected bythe Weter-oirculetin tubes il) end by the steerintubes 20, the en .s orn which ere secured in the 'respective drums. From the drum depends o. series of tubes 21, which are eonnect ed et their lower 4ends with the header 22, which in turn is connected by s. series of tubes, as with the lowcrniud-druin 24. The header 22 is also preferefbly connected. with the iront upper Adrinn i? by the series el tubes 25, ivln'le the mudfdrurn 2s is prefersblyconnested by the series of tubes 2G with the front header 27, which in turn is connected to the iront upper drurn l? by e. series of tubes, as 28. v y

The roer upper drinn i8 has the Wet winlet pipe 29, the steam-outlet pipe 30,- and the superheater connectingpipe 3l, furnished with the valve 32. The outletmipe 30 hns the 'vulve 33, and from this pipe extends the 'velved pipe 34, having the velved blow-oil' pipe and the steun-delivery pipe 36, ex* tend ing from the superb eeterfroni the iron t upper drum l? extends the superheeter weter-supply pipe. 37,' her/ing the valve 38, beyond which `valve this pipe 3"! comnnuncotes with the. drain-pipe' 39 nd with. one section of the superheater: As the pipes Si, 36, 87, end 3Q and their valves ere outside the side Well 6, ns indicated Fig. P oi' 'the drawings, said valves are accessible for controlling the essege or Water or steam' through said pipes.

The superhenter preferably comprises three pairs of sinuous vertical boxes in' the nature of headers, located in or supported by the well 6 and extending from the outer side thereof. These boxes 40 41, 42 43, end Lili 45 are preferably arranged in offset relation both horizontally and vertically, es shown in Fig. l ofthe drawings, and in cach pair of seid.

ICO

boxes oro secured the ends of a. series of cird IIS nets of combustion eireuleti euleting-tubes 46, 47, and 48, which extend transversely of the boiler, the ends of these tubes being preferably secured in relation in said boxes, whereby speso is econvornised Without weakening the boxes sind the tribes ere subjected to the notion oi the prodtherebetween, while the vertical and horizontal errengen ment of t ie several series oitubes design ed to be eeted upon by the heated passing horizontally or vertically. The box 4.0 connected by the pipe 49 With the tit-ting of the writer-supply pipo 37 nul by the pipe 3l with the drum 13. Circulation is hirnisbed from the boi; 40 through 'the tub '-l to the bos: 4i, thence by the pipe- 50 to the box 42, through the tubes 4:7 to the box 43. through the pipe'l to the box 4ta-nd through the tubes e@ to the box 45, Whiel'i eonnnnnieetes with the steam-delivery pipe 3o. The valve 38 being open, Weiter snp lied to tlie boiler in. any usuel manner, y ineens of the vinlet 2Q, will fill the boilertubes end the drinn Zet,

also partially iilling the drums 17' and 153 :ind e 'filling the snperheeter end its pipe to :t level with the Water-level in said dennis The valve 35S is nonv preferably closed end the lvalve 32 is opened, es also the valve of the Which the circulo-te toward the tubes if) and 2O and thence downward between the bslle il end the beifle 15 until they poss benesth the lower edge of the deflect-or 16. in this rearward end downward passage the ereses circulate about the tubes of the superheater and reise the temperature oi.' the seme end of the Waiter or steam circulating therein.

Under the notion of the hearted gases the Water in 'the boiler-tubes 25 ond 26 circulates toward the drum 17, and hence to the drinn 18, through the tubes i9, the steam passing through the tubes 20. The Water in the su pei-heater circulates through the several oi boxes and their tubes, end the steein generated from seid Water finds en outlet through the pipe F36 to the blow-off pipe 35.\ When the steann passing from the blosoil pipe is found to be sufficiently dry, the valve oi seid pipe is closed, es is also the valve 33, While the valves of the pipes 34 and 3l. are opened, thus allowing steam tov pass from the drum 18 through the pipe 31 to the box 40 of the superheeter' and thence through the ses# erel boxes sind systems of tubes thereof to the pipe 3l end through the pipe 34 to the' mein steeIn-pipeBO. When desired, any Water in the snperheeter may be drei/vn ofi through the dreinpipe 439.

described may be used Without thereby liiniting the present invention.

lzlziving thus described. my invention, llA

eleiin es new and desireto secure by Letters Petente- 1. A superheeter :for steam-boilers oom-v prising e series of' pairs of headers srrenged in staggered rel ation, one of ee-eh of said pairs of headers 'being connected 'With one header ol' the next edjseent pair, and tubular com 'neotionl between the headers ot' each pair.

2. The combination with e steam-boiler' having upper iront and resi" drums, end Wer tr-iieeireuloting tubes Connecting seid. drums, ot n superheeter coin Rising e series of tubes extending trsnsvorseiy oi: the boiler below seid Weter-eirouloting tubes, headers in which th e ends oi seid tubes ere Connected, e, steerin- 'pipe eonneotirrg the steers-spese of the rear drum with one oi seid headers, end connestions between the other of sind headers and the stes,iiirleliyery mein.

3. The combination With e, steam-boiler having upper front and rear drums, end tubes eonneeting said drums, oi e tubular' superhestei' loested approximately between seid drums, connections respeetively between the Weter-speee of the front dru 1n end seid superhester, end between the steam-space oi' the rear drinn sind said superheeter, and e eonneetion between seid superheeter and the' steers-delivery mein. f

4; The combination with e steern-boiler having upper ront and rear drums, and tribes conn yeting the same, ot s su Y erheeter loeeted approximately between sei( drums and conneeted with the steam-delivery mein, e con* neetion between the stesin-spaee of one of said drums end the lower portions of the superheeter, and e Water-supply pipe eonneeting with seid superheeter.

5. The combination vwith e steam-boiler ne-ying drum designed to receive steam, oi s. sn erheeter comprising e series or' peirs Vof hes ers, each pair lconnected by transverse'ly-extending tubes, and connections between eoeh of seid pairs of headers, e eonnee tion. between one of seid headers end the steam-space of seid drum, a Weter-s11pply pipe connecting with one of seid headers, end e steam-outlet pipe connecting one ofsaid headers with the steain-delivery mein, said outlet-pipe being furnished Vith s yslved blow-oil pipe. v

6. The combination with e boiler having' e IOC steam-space, of :t superheater comprising a l steamdelivery pipe connected in the upper series or steam or water circulating elements of said elements. lo arranged transversely of the boiler and offset In testimony whereof I ax my signature both vertically and horizontally, said several in presence of two witnesses. elements being connected in series, a; eonnee- CLARENCE HILL SMITH.

tion between the lower of said elements `and VVt-nesses:

said 'steam-space, e water-supply pipe con- HENRY J. MILLER,

neeted with the lower of said elements, and a PHYLLrs TONER. 

